LED driver auto-synchronizes “fun lights” with stereo

Santa Clara, Calif. – National Semiconductor’s LM4970 ‘Boomer’ is an audio-synchronized color LED driver for stereo-with-“fun light” applications in cell phones and various portable player products. Touted as a “no programming required” device, it also offers users the traditional option of applying pre-programmed I2C-bus compatible code to secure the desired lighting effects.